coder1.dk

📜 Historical scan 2026-08-21 16:02:57  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

coder1.dk is a .dk domain served by 2 nameservers (kip.ns.cloudflare.com, lina.ns.cloudflare.com). It was registered on 16 September 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.6.198 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.simply.com. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records   257ms
NameserverIP addressesPTRASN / ISP
kip.ns.cloudflare.com 108.162.193.128
172.64.33.128
173.245.59.128
2606:4700:58::adf5:3b80
2803:f800:50::6ca2:c180
2a06:98c1:50::ac40:2180		 kip.ns.cloudflare.com
kip.ns.cloudflare.com
kip.ns.cloudflare.com
kip.ns.cloudflare.com
kip.ns.cloudflare.com
kip.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
lina.ns.cloudflare.com 108.162.192.187
172.64.32.187
173.245.58.187
2606:4700:50::adf5:3abb
2803:f800:50::6ca2:c0bb
2a06:98c1:50::ac40:20bb		 lina.ns.cloudflare.com
lina.ns.cloudflare.com
lina.ns.cloudflare.com
lina.ns.cloudflare.com
lina.ns.cloudflare.com
lina.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.

🌍 A Records#

2 records   240ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.6.198 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.135.59 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   235ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s mx.simply.com 94.231.106.20 mx.simply.com AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover104.21.6.198
🔶 Autoconfig104.21.6.198

🔷 AAAA Records (IPv6)#

2 records   235ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3031::6815:6c6 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3033::ac43:873b 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   254ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.6.198,172.67.135.59 ech=AEX+DQBBTAAgACBDBiNPRa3JAde2W8i1tIukUky3n34zHcc735yBmfpvegAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:6c6,2606:4700:3033::ac43:873b

📝 TXT Records#

3 records   993ms
TXT Record
MS=013140A095AA28DB9EC7765BD425206BACB8A0A3
protonmail-verification=9aa545caeee819fde01542b581e315d9dc8d1ffa
v=spf1 include:spf.simply.com -all

✉️ SPF#

PolicyRecord (coder1.dk)
-all (hard fail) v=spf1 include:spf.simply.com -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-16 23:07:41
www104.21.6.198 172.67.135.59 2606:4700:3031::6815:6c6 2606:4700:3033::ac43:873b (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.coder1.dk 4fMK6CNmdh1f4vNgIzgQNumPpmozrNqkcWFDO9jYuIk
TXT _acme-challenge.coder1.dk rXfzP6lNFfiNLUq1UZRzUZKjgJ1y4xUX_ufyEhygXhs

🔗 TLSA / DANE#

2 records   364ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 97A3BA009F39C761BFFB6574340E8138…
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 A9D603AF4D7ED6B9246B4B68500CD6F2…

🔐 DNSSEC#

542ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2412797251
Primary NS (MNAME)kip.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-16 23:19:20
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2009-09-16
Expires2027-09-30 (347d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet
📋 WHOIS#

⏱️ Lookup Timing#

NS
257ms
A
240ms
MX
235ms
AAAA
235ms
TXT
993ms
CAA
286ms
HTTPS
254ms
TLSA
364ms
SOA
0ms
MTA-STS
359ms
DNSSEC
542ms
SRV
325ms
Total
6872ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-16 23:07:41 751ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-30 07:52:34 555ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-29 08:20:43 722ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-24 06:35:31 624ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-24 17:50:28 631ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-23 17:37:16 974ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-21 16:02:57 shown 6872ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-20 15:56:29 32858ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-19 15:07:38 1895ms 2 NS 2 A 1 MX 🔓 Insecure
2026-07-31 19:59:29 838ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-26 17:44:15 674ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-25 17:30:13 667ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-24 06:47:10 981ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-24 01:26:31 1781ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-16 21:48:52 374ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-16 21:40:29 499ms 2 NS 2 A 1 MX 🔓 Insecure
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